Speed-indicator.



Nb. 758,596. PATENTED APR, 26. 1904. G. N. MOORE & ONEILL.

SPEED INDICATOR.

APPLICATION FILED AUG. 12, 1903.

N0 MODEL.

ATTORNEY mums PETERS on. mmn'u'rua. wumucnox. a. c.

UNITED STATES I Patented April 26, 1904.

PATENT OFFICE.

GEORGE N. MOORE AND MURRAY ONEILL, OF NEW YORK, N.'Y., ASSIGNORS OF ONE-THIRD TO WILLIAM W. CURRIER, OF NEW YORK, N. Y.

SPEED-INDICATOR.

SPECIFICATION forming part of Letters Patent No. 758,596, dated April 26, 1904..

Application filed August 12, 1903.

To all w/tmn it may concern:

Be it known that we, GEORGE N. MOORE and MURRAY ONEILL, citizens of the United States of America, and residents of the borough of Manhattan, New York 'city, and State of New York, have invented certain new and useful Improvements in Speed-Indicators, 'of which the following is a specification.

Our invention relates to indicators of the speed'of automobile vehicles, cars, and other carriages; and it consists of improvements in graduated springs actuated the usual centrifugal power mechanism and means of transmitting the motion of the springs to the usual index-finger of a graduated dial, whereby a larger range and more reliable graduation is obtained from the limited range of motion obtainable with the usual centrifugal devices, as-- hereinafter described, reference being made to the accompanying drawings, in which Figure 1 is a vertical sectional elevation of our improved speed-indicator. Fig. 2 is a horizontal section on line 2 2 of Fig. 1. Fig. 3 is a horizontal section on line 3 3 of Fig. 1.

Fig. 4: is a' detail in vertical section, showing a modification.

A represents an inclosing case for the centrifugal devices, which is supported on the tubular standard a, which is to be mounted on any convenient part of the carriage and to which the case is detachably connected by the screw-joint b, or it may be any other suitable connection. The base 0 of said case is centrally perforated at d, and the cover 6 has a central tubular vertical extension 6, on the upper end of which the usual case f, containing the index-operating appliances and carrying the dial-scale, is mounted. A terminal portion of a driving-shaft-g, preferably of flexible structure and which is in its extension (not here shown) to be geared in any way with any moving part of the machine for being rotated, enters the standard a from below and is coupled at it with a shaft 11, extending upward through case A and upward into the interior space of case Inside of case A and directly above bottom Serial No. 169,168. (No model.)

0 a hub j is secured to shaft d by a set-screw 7a or other approved means, in the upper side of which hub is a socket Z, in which a coiled spring m, surrounding shaft d, is seated. On this spring m a sleeve 42, having ahead 0 on the lower end and being slidable on shaft 2', rests. A collar p, having a socket q in the under side and being slidably fitted on sleeve n, is lodged on sleeve n and held in position by head 0, the depth of the socket being such as to extend below the head 0 and form a retaining-socket for the upper end of spring on. Between the flanges of these sockets Z and q .a free space 0 is provided, allowing compression of spring m to a predetermined extent.

On the upper end of collar 10 a stronger coiled spring 8 rests, said spring being carried on the sleeve n, and over this spring and attached to the upper endof sleeve n at t is a sliding collar 14, having a socket o in the upper end, in which a coiled spring 0) rests, which is of less capacity than spring on, said spring being coiled around shaft 2', and on it is carried a sleeve w, having a socket'm, which receives the upper end of the spring 0/, a

free space y being normally maintained bev tween the flanges of sockets 'U and w.

The sleeve w extends upward into space in case f and there connects by the annular groove 2 in it and stud-pins 2 with the prongs of a forked lever 3, carried on a fulcrum-pin 4, for communicating-motion tothe indicator-finger, as will be explained further.

A pair of plate or bar springs 5, carrying centrifugal weights 6 intermediately of their ends and ranging vertically, are attached at their lower ends to opposite sides of hub 1', respectively, and are at their other ends attached at 7 to opposite sides, respectively, of the lower end of sleeve w, so that by the centrifugal action of the weights 6 sleeve w will be shifted up and down the shaft i, according as the centrifugal action varies with the Variations of the'rotatory speed of shaft c'. The spring 4), having least resisting power, will first yield to the pull of springs 5 until the flanges of sockets o and as close against each other. Then spring m, being next in power of resistance, will yield until fianges of sockets Z and q come together, and then compression of the more powerful spring .9 will follow. Thus gradually-increasing resistance is brought into action as the centrifugal power increases through the greater speed and wider range of the weights and within shorter range of the reciprocating sleeve w than can be obtained with a spring or springs of uniform resistance.

The forked lever 3, with which sleeve 'w engages, is coupled with the toothed segment 9 by the link 11 and the extensible arm 12, said segment being pivoted at 13 between the supporting-bars 14 of the pivot 15 of the index-finger 16, on which is a pinion 17, with which the segment 9 gears to actuate said finger. 18 is the retracting-spring for the finger-impelling segment 9.

The intermediate spring .9 may be omitted and the spring 0/ be seated on the collar if desired, said collar being suitably elongated and having a suitable socket o for said spring, with the sleeve 12 and collar 10 also omitted; but the range of graduation of the springs will be correspondingly restricted.

What we claim as our invention is 1. The combination with an upright rotatory shaft having suitable supporting-bearings, a coiled spring surrounding said shaft and fixedly seated thereon, a sleeve capable of lengthwise movement on said shaft; one or more differentiated coiled springs also surrounding said shaft and interposed between said fixed spring and said sleeve, and centrifugallyweighted springs coupling said fixed seat and sleeve, whereby said weights effect compression of the springs progressively as the rotatory motion of the shaft varies.

2. The combination with an upright rotatory shaft having a coiled spring surrounding said shaft and fixedly seated thereon, a sleeve capable of lengthwise movement on said shaft, one or more differentiated coiled springs also surrounding said shaft and interposed between said fixed ly-seated spring and said sleeve, centrifugally weighted springs coupling said fixed seat and sleeve, whereby said weights effect compression of the springs progressively as the rotatory motion of the shaft varies, a rotatory index-finger and a registering-scale, and means connecting said sleeve and finger for rotating the finger by the movements of the sleeve.

3. The combination with an uprightrotatory shaft having suitable supporting-bearings, a coiled spring surrounding said shaft and fixedly seated thereon, a slidable collar on said shaft and resting on said spring, a slidable sleeve on said shaft above said collar, acoiled spring intermediate of said collar and sleeve and differentiated in respect of its power relatively to said first-mentioned spring, and centrifugally weighted springs coupling said fixed seat and sleeve whereby said weights effect compression of the springs progressively.

4. The combination with an upright rotating shaft having suitable supporting-bearings, a coiled spring surrounding said shaft and fixedly seated thereon, a slidable collar on said shaft and resting on said spring, a slidable sleeve on said shaft coupled at one end with said collar, another slidable collar on said shaft coupled with the other end of said sleeve, a coiled spring on the shaft between these two collars, another slidable sleeve on said shaft above the uppermost collar, a coiled spring intermediate of said uppermost collar and the sleeve above, and centrifugally weighted springs coupling said fixed spring-seat and the uppermost sleeve whereby said weights effect compression of the several springs progressively.

5. The combination of the upright rotatory shaft 7: having suitable supporting-bearings, hub j fixedly secured on said shaft, spring 112. coiled on said shaft and resting on hub j, slidable collar 12 on said shaft and resting on spring m, coiled spring 4) on said shaft above collar 1), sliding sleeve w resting on spring 1) and centrifugally weighted springs 5 coupling hub j and sleeve w, said coiled springs being differentiated relatively to' each other in respect of their power.

6. The combination of the upright rotatory shaft'z' having suitable supporting-bearings, hub j fixedly secured on said shaft, spring m coiled on said shaft and resting on hub j, slidable collar 1) on said shaft and resting on spring m, sleeve 72 coupled to collar 1), coiled spring 8 on said shaft and resting on collar 12, sliding collar a coupled to the upper end of sleeve a. coiled spring a on said shaft and resting on collar 11, sliding sleeve w on. said shaft and resting on spring a), and centrifugally-weighted springs 5 coupling hub jand sleeve 10, said coiled springs being differentiated relatively to each other in respect of their power.

Signed at New York this 8th day of August, 1903.

GEORGE N. MOORE. MURRAY ONEILL.

WVitnesses: I

G. SnDGwIoK, A. P. THAYER. 

